.nav {width:100%; height:100%;}
.nav-logo {float:left; margin-top:7px; width:187px; height:46px;}
.nav-menu {float:left; line-height:60px; margin:0 15px;}
.nav-menu li {float:left; list-style:none; width:100px; text-align:center;}
.nav-menu li a {color:white;}
.nav-login-box {width:198px;  height:100%; position:absolute; top:0; right:0;}
.nav-login-btn {float:right;}
.nav-login-btn li {float:left;list-style:none; padding:0 8px; margin:0 20px;}
.nav-login-btn li a { font-size:16px; text-align:center; line-height:60px; color:white; }